Messages in this thread | | | Date | Mon, 6 Feb 2023 16:18:20 +0000 | From | Matthew Wilcox <> | Subject | Re: [PATCH V6 2/2] mm: shmem: implement POSIX_FADV_[WILL|DONT]NEED for shmem |
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On Mon, Feb 06, 2023 at 07:51:33PM +0530, Charan Teja Kalla wrote: > +static int shmem_fadvise_willneed(struct address_space *mapping, > + pgoff_t start, pgoff_t long end) > +{ > + struct page *page; > + pgoff_t index; > + > + xa_for_each_range(&mapping->i_pages, index, page, start, end) { > + if (!xa_is_value(page)) > + continue; > + page = shmem_read_mapping_page(mapping, index); > + if (!IS_ERR(page)) > + put_page(page); > + } > + > + return 0; > +}
Hm, that's a gap in the shmem folio API. Patches imminent.
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